Troughing system for electric-appliance receiving cabinets



May 1, 1928.

J. SACHS TROUGHING SYSTEM FOR ELECTRIC APPLIANCE RECEIVING CABINETS Filed Sept. '7. 1926 3 Sheets-Sheet 1 -7 I vI 8 23 INVENTOR 22 MUSE 17f? 555/75 A ORNEY J. SACHS TROUGHING SYSTEM FOR ELECTRIC APPLIANCE RECEIVING CABINETS Filed Sept. '7, 1926 5 s t -s t 2 INVENTOR Jusspfi 555/75 BY gf. 73% 4 ,QORNEY May 1, 1928.

1,667,871 J. SACHS TROUGHING SYSTEM FOR ELECTRIC APPLIANCE RECEIVING CABINETS Filed Sept. '7. 1926 3 Sheets-Sheet 3 2' y q 3 g g 8 llmm E 1 E 35a Patente'd May 1-, 1928.

UNITED STATES .rosnrn sacns, or ammonia, commences.

TBOUGHING SYSTEM FOR ELECTRIC-APPLIANCE RECEIVING CABINETS.

Application fll ed september 7, 1926. Serial at. 134,122.

The invention relates to a. system of wire receiving troughsprimarily adapted to be used for connecting together a numberof cabinets such as are used for receiving the current controlling appliances commonly associated with electric meters. For installations including a. plurality of service de vices, as for instance in stores, ofiice buildcommon practice to provide a horizontal sewas or bank of such electric appllance receiving cabinets, the successive cabinets of the series being connected by means of openfront wire receiving troughs which extend into openings formed in the cabinet side walls. The connecting wire extending between the cabinets are located in the troughs and the troughs are closed by means of movable front covers, ordinarily held-in place by means of the covers of the cabinets.

For the larger buildings it is not sufiicient to provide a single horizontal series of such cabinets, but it is necessary to provide two or even three or more superposed series. The general object of the present invention is to provide a troughing system which in cludes not only horizontal troughs for connecting the cabinets of each series, but also a vertical trough for connecting two or more horizontal series'and for receiving the necessary wires extending vertically from one horizontal series to another or continuing therefrom. While I have stated that the invention is primarily applicable for connecting two or more cabinets in two or more horizontal series, it will be imderstood that the invention in its broader aspects is not necessarily so limited, but may be applicable to a system including a vertical trough component and a single horizontal trough component connected to a single trough.

A more specific object of the invention is to makeprovi'sion whereby the cover means, not only for the horizontal trough or troughs but also, for the vertical trough may be held in place by one or more of the several cabinet covers. A still more specific object of the invention is to provide an improved interlocking construct-ion whereby the covers for the horizontal trough or troughs are held in place by the cabinet cover or covers and whereby the cover for the vertical trough is held in place by the cover or covers for the horizontal trough or troughs.

Another specific object of the invention is to provide a construction which permits the horizontal troughs which are used in conunction with the vertical trou h to be identical in construction with t e horizontal troughswhich are used for directl connectmg two adjacent cabinets in a horizontal series.

Still another specific object of the inven-- tion is to provlde two or more separate verings, apartment houses and the like, it 1s tical troughs which may be connected together when desired, the construction being such that only one vertical trough is required for two horizontal series and that one or more additional vertical troughs can be added for one or more additional horizontal series In accordance with the invention the addltional trough is preferably different in form or style from the first trough.

St1ll other specific objects of the invention Wlll be a parent from the drawings and from the ollowing specification and claims In the accompanying drawings I have shown the embodiment of the invention which I now deempreferable, but it will be understood that the drawings are intended for illustrative purposes only and are not to be construed as definincr or limitin the scope of the invention, the claims formmg a part of this specification-being relied upon for that purpose.

'Fig. 1 is an oblique View showing three horizontal series of cabinets together with a connecting troughing system embodying the invention.

Fig. 2 is an isometric view showing in detail some of the parts of the troughlng system.

Fig. 3 is an enlarged fragmentary vertical sectional view taken along the line 3-3 of Fig. 1.

ig. 4 is an enlarged fragments. horizontal sectional view taken along t e line 44 of Fig. 1.

Fig. 5 is a view similar to Fi 1 but show?- ing a difi'erent arrangement 0 troughs and cabinets, the trough and cover constructions also being somewhat diflerent.

Fig. 6 is a view also similar to Fig. 1 but showing a still difierent arrangement of troughs and cabinets, the trough and cover construction being also somewhat different. Fig. 7 is an enlarged fragmentary vertical sectional view taken alongthe line 7-7 of Fig. 6.

Referring to the drawings, particularly Figs. 1 to 4 thereof, 1, 1 and 1, 1 represent electric appliance receiving cabinets arranged in two superposed horizontal series, that is, with one series vertically above the other. I have shown four cabinetsin the series 1, 1 and two cabinets in the series 1 1. It will beunderstood, however, that I do not limit myself to any particular numbers of cabinets in the respective series. I

do not limit myself as concerns the details of cabinet construction, but, as illustrated, each cabinet includes side walls 2 and a cover 3 pivoted to oneof the end wallsand provided with lateral flanges 4 which iit over the corresponding side walls. Each cover may be sealed in closed position by means of a seal 4; Usually a meter M is associated with each cabinet, the tenninal switch, the said switch having its terminals properly connected with the service and load wires and also with the terminals of the meter when a meter is provided. Ordi naril the service wires extend into the respectlve cabinets through the troughs to be presently describedin detail, and the load wires may extend from the respective cabinets through suitable conduits such as C, C; but it will be understood that either load or service wires may extend through any of the troughs as the installation conditions require. The fused switch or other current controlling appliance contained in each cabinet is not shown in the drawings as it does not of itself constitute any part of the present invention. It may be of any usual or preferred construction such for instance as that disclosed in my Patent No. 1,479,012, dated January 1, 1924. The device may be provided with an exterior handle 5 for operating the switch inside of the cabinet.

In accordance with the invention I provide an interconnected open-front wire receiving troughing means which extends in different directions and which preferably includes a vertical trough component and at least one horizontal trough component connected with the vertical component and with at least one cabinet. Preferably and ordinarily there are at least two horizontal trough components each-connected with at least one cabinet, which cabinet may be one of a horizontal series As shown in Fig. 1 each horzontal trough component is located. between and connected with two cabinets but this is not essential as concerns the broader aspects of the invention. As concerns the details of construction o'fthe several trough components there may be wideYvariation, but I prefer to construct the horizontal components and the vertical component separate ries of cabinets.

neeasvi from each other. I also provide a. movable front cover means for all of the said components.

. As shown and as preferred I provide an open front vertical trough 6 located adjacent a cabinet of ,each series, and it may be between two cabinets of each series as shown in Fig. 1. The trough 6 has side walls 7, 7 and it is preferably adapted to engage the same wall or panel which supports the cabinetsand to be secured to such wall orpanel, although this is not essential. vertical trough is located between two cabinets of each series as shown, each horizontal component preferably comprises two sepal/Vhen the rate horizontal trough 8, 8 respectively conuecting the vertical trough with the corresponding cabinets. At-lcast one side wall'of each cabinet is'provided with an open-side trough receiving opening 9, preferably U- shapcd. extending rearward from the front thereof and the side walls 7, 7 of the vertical trough 6 are provided with similar openings 10, 10. The openings 10, 10 in the side walls of the vertical trough 6 are preferably arrangedin pairs with the openings in each pair directly opposite each other. Instead of initially constructing the cabinets and the vertical trouglrwith completely formed openings in the side walls, I preferably provide suitable knock-outs 9, 9 and 10, 10 in the said side walls which are adapted to be conveniently removed when and as needed to provide the required open-side trough receiving openings. The knockouts 9 9 are shown in Fig. 1 and the knock-outs 10 10 are shown in the left hand portion of Fig. 2. Preferably each knock-out 9 has included within it a smaller knock-out 9 which can be removed, if desired, to provide for the connection of a conduit at one end of a se- This knock-out construction does not of itself form any part of the present invention, it being set forth in patcut for electric conduit systems, No. 1,608,-

621, issued November 30. 1926.

the left end of the series l, 1. When atrough 8 is used for directly connecting.

two cabinets it. is provided with a cover 8 held in place by the cabinet cover 3,

3 in accordance with usual practice. As

shown in detail in Fig. 2, each horizontal trough 8 is U-shaped in construction so as to be adapted to enter and fit the U-shaped openings in the side walls of the corresponding cabinet and the vertical trough. It is provided at each end with flanges 11, 11

which project laterally and are adapted to engage the inner surfaces of the corresponding side walls. Preferably there are also provided outward projections 12,12 which are adapted to engage the outer surfaces of the side walls. It will be seen that the said flanges 11, 11 and the said projections 12. 12 cooperate to provide a positive spacing means between the vertical trough and the adjacent cabinets. For securing each horizontal trough in place in proper relation to the corresponding cabinet and the vertical trough I provide a suitable fastening means which is preferably that disclosed and claimed in my copending application for enclosing system for electric service appliances.

Serial Number 107,163, filed May 6, 1926. Each trough is provided at each end with an ear 13 which projects longitudinally beyond the end of the trough proper and which is pmvided with a screw hole therein. The back walls of the corresponding cabinets and-the vertical trough are provided with threaded screw holes adapted to receive screws 14, 14 extending through the screw holes in'the ears 13, 13. By means of the screws 14, 14 each horizontal trough may be drawn backward into its proper positionand firmly held in such position.

For closing one or both ends of the vertical trough, I provide either one or two sepa rate end walls 15. The trough 'is provided at each end with means for the attachmentof such an end wall,-and as shown this means consists of holes 16, 16 in the side walls 7. 7 of the trough and a threaded hole 17 in the back wall. The end Wall 15 is provided with side and bottom flanges having holes 18, 18 and 19 therein adapted to register respectively with the said holes 16. 16 and 17. The end wall may be held in place by means of bolts 20, 20 extending through the holes 16, 16 and 18, 18 and by means of a screw 21 extending through the holes 17 and 19. Preferably the end wall 15 is provided with an opening or a knock-out at 22 which permits the attachment to a suitable wire conduit or other accessory.

The cover means for the several troughs is preferably so constructed to be held in place by one or more of the covers 3, 3 of the cabinet-s. Preferably I provide separate covers for the horizontal and vertical troughs. For each pair of horizontal troughs 8, 8 I provide a single cover 23 which is of such a length as to extend from one cabinet to the other, thus closing both of the horizontal troughs and a part of the vertical trough. Each cover 23 is provided with upper and lower flanges 24 and 25 fitting respectively over and under the upper and lower walls of the corresponding horizontal troughs 8, 8. Preferably the upper and lower walls of the trough are provided with small projections 23 which are adapted to enter corresponding depressions in the flanges 24 and 25 of the cover. In this way the cover is resiliently held in place, but can be easily removed when desired. Each cover 23 is also provided at its ends with outward extending flanges 26, 26 which lie in the same planes as the corresponding side walls of the cabinets and which are adapted to engage the inner surfaces of the correspondingside flanges 4, 4 of the cabinet covers. covers are closed the inner edges of the flanges 4, 4 also engage the outer surfaces of the cover 23 and thus the cabinet covers serve to hold the corresponding horizontal trough covers against ,outward movement and against longitudinal movement.

lVhcn the cabinet For the vertical trough 6 I provide a i cover 27 having flanges 28, 28 at its sides which fit overt-he side walls of the trough. The side walls of the vertical trough are preferably provided with small projections 27 similar in function to the projections 23 already described. The length of the cover is approximately equal to the distance between the adjacent edges of the openings 10, 10 of the two pairs and the cover is provided at its ends with outward extending flanges 29, 29 adapted to engage the inner surfaces of the upper and lower flanges of the respective horizontal covers 23, 23. The said upper and lower flanges also engage the outer surfaces of the cover 27 and thus the said horizontal covers serve to hold the vertical cover against outward movement and also against longitudinal movement.

Preferably each end wall 15 is provided with an outward extending flange 30 which is adapted to engage the inner surfaces of the corresponding upper or lower flanges of a horizontal cover as clearly shown near the bottom of Fig. 1. This construction serves not only to assist in holding the end wall in place, but also to avoid any possible opening between the end wall and the horizontal cover.

From the foregoing description it will be understood that the cabinet covers 3 serve to hold in place the cover means for all the troughs. Therefore, the seals t serve not only to prevent access to the cabinets but also to prevent access to'the troughs.

As thus far described, the system is adapted primarily foronly two horizontal series lot) of cabinets. hen it is desired to make proing member 32'which is provided with holes adapted to register with the aforesald holes 16, 16 and 17 in the end of the trough 6,

"and adapted to receive bolts 20, 20 and ascrew 21. Thus I am enabled to use the same are additional horizontal troughs 8, 8 con- All ' time.

nected with additional cabinets 1", 1 The upper end of the trough 31 may be closed by means of an end wall 15, or if desired, still another trough similar to the trough 31 may be connected.

The pair of openings 33, 33 in the trough 31 is so located that the spacing between it and the next adjacent pair of openings 10, 10 in the trough 6 is the same as the spacing between the two pairs of openings 10, 10 in the said trough 6. This enables me to use a cover 27 for the upper trough 31 which is identical in .construction with the cover27 used for the lower trough 6. This cover is similarly held in place-by the corresponding horizontal covers 23, 23.

It will be understood that the several wires connecting the appliances in the successive cabinets in eachseries and also the several wires connecting the two or more series are located in the troughs which have been described. These may be service wires or load wires or any other wires required by the conditions of the installation. If-desired, the. lead-in wires for the system may extend through a suitableconduit such as 34 connected with one of the end walls 15 at the knock-out opening 22 therein, but this location for the lead-in wires is not essential. The several covers which have been described are readily removable to permit the wires to be put in place in the troughs orto permit access to the said wires at any In Fig. 5 I have shown an alternate arrangement which illustrates the fact that the invention is not limited to a vertical trough located between two cabinets in each of two or more series of cabinets. Under some conditions of installation it may be preferable to locate the vertical trough at the ends of the two or more series. As shown in Fig. 5 thereare two superposed series of cabinets 35, 35 and 35 35*. These cabinets may be the same as or similar to the cabinets 1, 1 and 1, 1 which have already been described, but they are shown as having covers 3 of somewhat different construction, thus illustrating the fact that the invention is in no way limited to the details of the cabinet construction. The several cabinets in each series are connected together by means of horizontal troughs 8 which may be identical inconstruction with those already described.

' At the ends of the series there is located a vertical trough 6 which may be substantially the same in construction as thetrougb.

6already described. At the ends of the trough endwalls such -as 15 are provided.

The description of thedetai'ls of the trough openings, even though both of the openings at each sidemay not be needed. Horizontaltrough components such as horizontal troughs 8, 8 connect the endcabinets of the respective series with the vertical trough 6 at the trough receiving openings therein. A

conduit 34 may be provided for the lead-in 7 wires.

lVith an arrangement such as shown in Fig. 5, I provide horizontal trough covers somewhat different from the covers 23, 23 hcreinbefore described. For each of the horizontal troughs there is provided a cover 36 which is arranged to also extend over the from the cabinet and adjacent the trough is provided with means whereby it may be in-- vertical trough and which at the end away ward extending flange 37 having an inward v bent lug 38 thereon which is adapted to enter a hole 39 in the corresponding side wall of the trough. The side walls ofthe trough are preferably formed with knock-outs adapted to be removed as required ,to form the holes 39. The other end of each coverplace by the lug 38 thereon and by the cover 3 of the corresponding cabinet. The verti cal trough is providedwith a vertical cover 27 which is identical in construction with the cover 27 heretofore described and which is similarly held in place by the two covers 36. 36.

, In Figs. 6 and 7 I have shown still another arrangement wherein one series of cabinets 35", 35 is at one side'of the" vertical trough and the other series of cabinets 35 is at the other side of the vertical trough. The cover construction may be identical with that shown in Fig. 5, but in order to further illustrate the scope of the invention. I have shown a still difi'erent cover construction. 4

As shown in Figs. '6 and 7 the vertical trough 40 is somewhat deeper than the be.- fore described troughs 6 and 6 and it is provided with end walls 41 which are, or may be, similar to .the end walls 15 but lit) cover 42 is provided having side flanges 43 which are interrupted at positions registering with'the trough openings or with the corresponding knock-outs 10". The covor 42 is provided with end flanges 44 at least one of which is formed with a suitable interlocking means adapted to cooperate with-the corresponding end wall 41. As shown at least one end flange 44 is provided with a lug 45 adapted to enter a hole 46 in the end wall, the hole preferably being formed byremoving a suitable knock-out.

The horizontal trough covers are shown at 47, 47, these being similar to the covers 36, 36 except that the upper and lower flanges are interrupted to receive the vertical trough as clearly shown in Fig. 6. The two covers 47, 47 may both be placed over or in front of the vertical cover 42 so as to hold the said vertical cover in place when the said horizontal covers are held by the cabinet covers 3 and by the lugs 38. owever, in Fig. 6 I have shown the cover 47, at the end adj acent the lug 45, as being underneath or'behind the vertical cover. Thus the vertical cover 42 holds the lower horizontal cover 47 and the said vertical cover is held by the upper horizontal cover 47 which is in turn held by the corresponding cabinet 3. In this way all of the trough covers are held by a single cabinet cover.

The cover construction as shown in Fig. 6 illustrates how the trough covers may be interlocked so that access to the wiring inv the troughs is obtained by opening only one cabinet and whereby the closed cover of one cabinet maintains the interlocked relation of a vertical trough cover to a horizontal trough cover.

In Fig. 6 I have shown the vertical trough at the ends of the series of cabinets, but it will be understood that the use of the cover interlocking as shown in this figure is not so limited. If it is desired to position the vertical trough 40 between two cabinets in each series, each cover 47 can be lengthened and provided with an outward projectingfiange at eachcnd adapted to fit under the corresponding cabinet cover.

Certain features of the construction herein disclosed are also disclosed in my copending application for electric meter service appliance, Serial Number 746911, filed October 30, 1924. In so far as there is subject matter in common this present application is to be regarded as a continuation of the said prior application.

What I claim is: I

1. The combination of an electric appliance receiving cabinet, troughing means comprising an open-front horizontal component connected with the cabinet and also comprising an open-front vertical component connected with the said horizontal component, the said .ertieal and horizontal trough components being structurally separate from each other and one of them having an opening in one side wall into which the other extends with a relatively close fit, and movable front cover means for both of the said trough components.

2, The combination of two superposed horizontal series of electric appliance receiving cabinets, troughing means comprising two open-front horizontal components respeetively connected with at least one cabinet n each of the two series and also comprismg an open-front vertical component connectmg the said two horizontal components, the said vertical trough component being structurally separate from the horizontal trough components and having openings in two side walls into which the said horizontal components extend respectively with relatively close fits, and movable front cover means for all of the said trough components.

3. The combination of two superposed horizontal series of electric appliance receivmg cabinets, two open-front horizontal trough components respectively connected with at least one cabinet in each of the two series, an open-front vertical trough structurally separate from the said horizontal trough components and serving to connect them, the said vertical trough component having two pairs of similar opposite openmgs in its side walls into which the said horizontal components extend respectively with relativel close fits, and movable front cover means or the said horizontal trough components and the said vertical trough.

4. The combination of twov superposed horizontal series of electric appliance receivmg cabinets, two 4 open-front horizontal trough components respectively connected with at least one cabinet in each of the two series, an open-front vertical trough structurally separate from the said horizontal trough components and having openings in two side walls into which the said horizontal components extend respectively with relatively close fits, a removable end wall for closing at least one end of the vertical trough, and movable front cover means for the said horizontal trough components and the said vertical trough.

5. The combination of two superposed horizontalseries of electric appliance receiving cabinets, an open-front vertical trough located between two adjacent cabinets in each of the said series, and having two pairs of similar opposite openings in its side walls, four open-front horizontal troughs respec tively connecting the vertical trough with the said four adjacent cabinets, and respectively extending into and relativel closely fitting the said openings, and mova le front cover means for all of the said troughs.

6. The combination of two superposed horizontal series of electric appliance receivingcabinets each having a trough receiving opening in one side wall, an open-front vertical trough located adjacent at least one cabinet in each of the said series and having trough receiving openings in at least one side wall similar to those in the cabinet side walls, open-front horizontal connecting troughs respectively extending into the openings in the respective cabinets and in the vertical trough, andimovable front cover means for all of the said troughs.

7. The combination oftwo superposed horizontal series of electric appliance receiving cabinets each having an open-side trough receiving opening in one side wall and extending from the front thereof, an openfront vertical trough located adjacent at least one cabinet in each of the said series and having open-side trough receiving openings in at least one side wall and extending rearward from the front thereof, open-front horizontal connecting troughs respectively extending into the openings in the respective cabinets and in the vertical trough, means for attaching the said horizontal connecting troughs to the respective cabinets and to the vertical trough, and movable front cover means for all of the said troughs.

8. The combination of two superposed horizontal series of electric appliance, receiving cabinets each having an open-side trough receiving opening in one side wall and extending from the front thereof, an openfront vertical trough located between two adjacent cabinets in each of the said series and having two pairs of oppositely disposed open-side trough receiving openings in its side walls and extending rearward from the fronts thereof, four open-front horizontal connecting troughs respectively extending into the openings in the side walls of the .correspondmg cabinets and in the side walls of the vertical troughs, means for attaching the said horizontal connecting troughs to the respective cabinets and to the vertical trough, two movable front covers for the saidhorizontal troughs each covering two of the said troughs and held in place by the corresponding cabinet covers when the latter are in closed positions, and a movable front cover for the vertical trough held in place by the said covers for the horizontal troughs.

9. The combination of two superposed horizontal ,series of electric appliance receiving cabinets each having a trough receiving opening in one side wall, an open-front vertical trough located adjacent at least one cabinet in each of the 'said series and having in at least one side wall trough receiving openings similar to those in the cabinet side walls, open-front horizontal connecting troughs identical in construction and respectively extending into the openings in the respective cabinets and into the corresponding nee-mm 10. The combination of two superposed,

horizontal series of electric appliance receiving cabinets each having a trough receiving opening in one side wall, one of the series including at least three cabinets, an

open-front vertical trough located between two adjacent cabinets in each of the said series and having in its side walls two pairs of oppositely disposed trough receiving openin s similar to those in the cabinet side wa s, four open-front horizontal connecting troughs identical in construction and respectively extending into the openings in the side walls of the four corresponding cabinets and in the side walls of the vertical troughs, movable front cover means for all of the said troughs, and at least one additional horizontal connecting trough identical in construction with those aforesaid and similarly connecting another cabinet with one of the aforesaid cabinets.

11. The combination of two superposed horizontal series of electric appliance receiving cabinets each having an openable front cover, troughing means comprising two openfront horizontal components respectively connected with at least one cabinet in each of the two series and also comprising an open-front vertical component connecting the said two horizontal components, and movable front cover means for all of the said trough components constructed and arranged to be held in place by the said cabinet covers when the latter are in closed positions.

12. The combination of two superposed horizontal series of electric appliance receiving cabinets each having an openable front cover, trougbing means comprising two open-front horizontal components each connected between 'two adjacent cabinets in the corresponding series and also comprising an open-front vertical component connecting the said two horizontal components, and movable front cover means for all of the said trough components constructed and arranged to be held in place by the said cabinet covers when the latter are in closed positions.

13. The combination of two superposed horizontal series of electric appliance receiving cabinets each having ,an openable front cover, troughing means comprising two open-front horizontal components connected with adjacent cabinets in the two series and also comprising an open-front vertical component connecting the said two horizontal components, movable front covers for the said horizontal trough components constructed and arranged to be held in place the said two horizontal components, movable front covers for the said horizontal trough components constructed and arranged to be held in place by the said cabinet covers when the latter are in closed positions, and a movable front cover for the vertical trough component constructed and arranged to be held in place by the said covers for the horizontal components.

15. The combination of two superposed hor1zontal serles of electric appliance receiving cabinets each having an openable front cover, an open-front vertical trough located between two adjacent cabinets in each of the said series, four open-front horizontal troughs respectively connecting the vertical trough with the said four adjacent cabinets, two movable front covers for the said horizontal troughs each covering two of the said troughs and constructed and arranged to be held in place by the corresponding cabinet covers when the latter are in closed positions, and a movable front cover for the vertical trough constructed and arranged to be held in place by the said covers for the horizontal troughs.

16. The combination of two superposed horizontal series of electric appliance receiving cabinets each having an openable front cover with inward extending side flanges fitting over the cabinet side walls, troughing means comprising two open-front horizontal components each connected between two adjacent cabinets in the corresponding series and also comprising an open-front vertical component connecting the said two horizontal components, movable front covers for the said horizontal components each having at its ends outward extending flanges adapted to engage the inner surfaces of the corresponding side flanges of the cabinet covers, the said horizontal covers being thus held by the, said cabinet covers against outward movement and against longitudinal movement, and a movable vertical front cover for the vertical trough component extending behind and thus held in place by the said horizontal covers.

17. The combination of two superposed horizontal series of electric appliance receiving cabinets each having an openable front cover with inward extending side flanges fitting over thecabinet side walls, troughing means comprisin two open-front horizontal components eac connected between two adjacent cabinets in the corresponding series and also comprising an olpen-front vertical component connecting t c said two horizontal components, movable front covers for the said horizontal components each having inward extending up per and lower flanges fitting over the upper and lower walls of the corresponding horizontal trough components and each having at its ends outward extending flanges adapted to engage the inner surfaces of the corresponding side flanges of the cabinet covers, the said horizontal covers being thus held by the said cabinet covers against outward movement and against longitudinal movement, and a movable vertical front cover for the vertical trough component having at its ends outward extending flanges adapted to engage the inner surfaces of the corresponding upper and lower flanges of the horizontal covers, the said vertical cover being thus held in place by the said horizontal covers against outward movement and against longitudinal movement.

18. The combination of two superposed horizontal series of electric appliance receiving cabinets each having an openable front cover with inward extending side flanges fitting over the cabinet side walls, two open-front horizontal trough components each connected between adjacent cabinets in the corresponding series, an openfront vertical trough structurally separate from the said horizontal trough components and serving to connect them, movable horizontal front covers forthe said horizontal components, each having inward extending upper and lower flanges fitting over the upper and lower walls of the corresponding horizontal trough components and each hav ing at its ends outward extending flanges adapted to engage the inner surfaces of the corresponding flanges of the cabinet covers, the said horizontal covers being thus held by the said cabinet covers against outward movement and against longitudinal movement, a movable vertical front-cover for the vertical trough having at its ends outward extending flanges adapted to engage the inner surfaces of the corresponding upper and lower flanges of the horizontal covers, the said vertical cover being thusheld in place by the said horizontal covers against outward movement and against longitudinal movement, and at least one removable end wall for the vertical trough having an outward extending flange adapted to engage the inner surface of the upper or lower flange of one of the horizontal covers.

19. An open-front wire receiving trough having side walls with an open-side trough vided with means at the said end for connection with the end of another similar trough.

20. An open-front wire receiving trough having side walls with at least two open-side trough r'eceiving openings therein extending rearward from the front thereof and spaced longitudinally from each other.

21. An open-front wire receiving trough having side walls With at least two openside trough receiving openings therein extending rearward from the front thereof and spaced longitudinally from each other, the said trough being open at at least one end and being provided with means at the said end for connection with the end of another similar trough. I

22. The combination of an open-front wire receiving trough having side walls with at least two-open-side trough receiving openings therein extending from the front thereof and spaced longitudinally from each other, and at least one removable end wall for closing an end of the said trough.

23. An open-front wire receiving trough having side walls with two pairs of oppositely disposed open-side trough receiving openings therein extending from the front thereof.

24. The combination of an open-front wire receiving trough having side walls with two pairs of oppositely disposed openside trough receiving openings therein extending from the front thereof, and a front cover for the said trough having a length approximately equal to the distance between the adjacent edges of the openings of the two said palrs.

25. The combination of two superposed horizontal series of electric appliance receiving cabinets each having a. trough connecting opening in one side wall, anopenfront vertical trough located adjacent at least one cabinet in each of the said series and having trough connecting openings in at leastone of its side walls similar to those in the cabinet side walls, two open-front horizontal trough components each connected with the vertical trough at one of the said openings and also connected with an adjacent cabinet in the corresponding series at the opening therein. a second open-front vertical trough adapted to be connected at one end of the first said vertical trough and having at least. one trough connecting opening similar --to those in the first trough whereby ahorizontal trough component forv a third series of cabinets may be connected, and movable front cover means for the vertical troughs and the horizontal trough components.

26. The combination of two superposed horizontal series of electric appliance receiving cabinets each having a trough connecting opening in one side wall, an open-front vertical trough located adjacent at least one cabinet in each of said series and having trough. connecting openings in at least one of its side walls similar to those in the cabinet side walls, the said trough having means at each end for the attachment of an end wall or another trough, two open-front horizontal trough components each connected with the vertical trough at one of the said openings and also connected with an adjacent cabinet in the corresponding series at the opening therein, a removable end wall forclosing one end of the vertical trough, a second open front vertical trough having at least one trough connecting opening similar to those in the first trough, the said end Wall and the second said vertical trough being adapted to be interchangeably connected at either end of the first said trough to close the said end or to permit connection with a horizontal trough component for a third series of cabinets, and movable front cover means for the vertical troughs and the horizontal trough components.

27. The combination of two superposed horizontal series of electric appliance receiving cabinets each having a trough connccting opening in one side wall, an openfront vertical trough located between two adjacent cabinets in each of the said series and having in its sidewalls two pairs of oppositely disposed trough connecting openings similar to those in the cabinet side walls, two open-front horizontal trough components connected respectively with the vertical trough at the said pairs of openings and also connected with two adjacent cabinets in each series at the respective openings therein, a second open-front vertical trough adapted to be connected at one end of the first said vertical trough andchaving in its side walls a pair of oppositely disposed trough connecting openings similar to those in the first' trough, .whereby horizontal trough components for a third series of cabinets may be connected, the pair of openings in the second said vertical trough being so located that the spacing between them and the next adjacent pair of openings in the first said section is the same as the spacing between the two pairs of openings in the first said section, and movable front cover means for the vertical troughs and the horizontal trough components, the said means comprising two separate vertical covers identical'in size and each having a length equal to the distance between the adjacent edges of the openings of two adjacent pairs.

28. The combination of an open-front wire receiving trough having side walls with at least two open-side trough receiving openings therein extending from the front thereof, and a second open-front wire receiving nee-1,071

trough adapted to be connected to one end of the first said trough, the second said trough having at least one opening therein similar to those in the side walls of the first said trough.

29. The combination of an open-front wire receiving trough having side walls with two pairs of oppositely disposed openside trough receiving openings therein extending from the front thereof, a second open-front wire receiving trough adapted to be connected to one end of the first said trough, the second said trough having side walls with one pair of openings therein similar to those in the side walls of the first said trough so located that the spacing between them andthe next adjacent pair of openings in the first said section is the same as the spacing between the two pairs of openings in the first said section, and two separate front covers for the troughs identical in size and each having a length e ual to the'distance between the adjacent e ges of the openings of two adjacent pairs.

JOSEPH SACHS. 

